CVE-2023-6377
Xorg-x11-server: out-of-bounds memory reads/writes in xkb button actions
- State
- Published
- Severity
- 7.8 High
- Published
- Dec 13, 2023
- Updated
- Jun 23, 2026
- Reserved
- Nov 29, 2023
Description
A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to a mouse can result in out-of-bounds memory reads and writes. This may allow local privilege escalation or possible remote code execution in cases where X11 forwarding is involved.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | redhat |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSIONRed Hat |
|
Red Hat Enterprise Linux 7Red Hat |
|
Red Hat Enterprise Linux 7Red Hat |
|
Red Hat Enterprise Linux 8Red Hat |
|
Red Hat Enterprise Linux 8Red Hat |
|
Red Hat Enterprise Linux 8Red Hat |
|
Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat |
|
Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceRed Hat |
|
Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsRed Hat |
|
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat |
|
Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceRed Hat |
|
Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsRed Hat |
|
Red Hat Enterprise Linux 8.6 Extended Update SupportRed Hat |
|
Red Hat Enterprise Linux 8.8 Extended Update SupportRed Hat |
|
Red Hat Enterprise Linux 9Red Hat |
|
Red Hat Enterprise Linux 9Red Hat |
|
Red Hat Enterprise Linux 9Red Hat |
|
Red Hat Enterprise Linux 9.0 Extended Update SupportRed Hat |
|
Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat |
|
Red Hat Enterprise Linux 6Red Hat |
References
- RHSA-2023:7886vendor-advisory
- RHSA-2024:0006vendor-advisory
- RHSA-2024:0009vendor-advisory
- RHSA-2024:0010vendor-advisory
- RHSA-2024:0014vendor-advisory
- RHSA-2024:0015vendor-advisory
- RHSA-2024:0016vendor-advisory
- RHSA-2024:0017vendor-advisory
- RHSA-2024:0018vendor-advisory
- RHSA-2024:0020vendor-advisory
- RHSA-2024:2169vendor-advisory
- RHSA-2024:2170vendor-advisory
- RHSA-2024:2995vendor-advisory
- RHSA-2024:2996vendor-advisory
- RHSA-2025:13998vendor-advisory
- https://access.redhat.com/security/cve/CVE-2023-6377vdb-entry
- RHBZ#2253291issue-tracking
- https://gitlab.freedesktop.org/xorg/xserver/-/commit/0c1a93d319558fe3ab2d94f51d174b4f93810afd
- https://lists.x.org/archives/xorg-announce/2023-December/003435.html
- http://www.openwall.com/lists/oss-security/2023/12/13/1
- https://lists.debian.org/debian-lts-announce/2023/12/msg00008.html
- https://lists.debian.org/debian-lts-announce/2023/12/msg00013.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6R63Z6GIWM3YUNZRCGFODUXLW3GY2HD6/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7PP47YXKM5ETLCYEF6473R3VFCJ6QT2S/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IFHV5KCQ2SVOD4QMCPZ5HC6YL44L7YJD/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LJDFWDB7EQVZA45XDP7L5WRSRWS6RVRR/
- https://security.gentoo.org/glsa/202401-30
- https://security.netapp.com/advisory/ntap-20240125-0003/
- https://www.debian.org/security/2023/dsa-5576
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